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EB 3963 EN
55
Malfunctions
9
Malfunctions
Contact SAMSON's After-sales Service de-
partment for malfunctions not listed in Ta-
Table 2:
Troubleshooting
Faults
Possible reasons
Recommended action
The solenoid valve does not
switch.
Incorrect terminal assignment.
Check electrical connection.
Turn turnable gasket to external
pilot air.
Connect port 9 and supply it
with compressed air. Alterna-
tively, turn the turnable gasket
to internal pilot supply.
The solenoid valve leaks to the
atmosphere.
Gasket slipped.
Check that the formed seal and
O-rings are correctly seated.
Pilot pressure is insufficient and
an intermediate position of the
solenoid valve is reached (air is
constantly vented)
Check the pressure line.
Check the pressure line for
leakage.
Use a larger cross-section for
the pressure line.
9.1
Emergency action
The solenoid valve has a safety function.
Upon failure of the supply voltage or air
supply, it automatically closes (closed in the
de-energized state).
The plant operator is responsible for emer-
gency action to be taken in the plant.
Note
Summary of Contents for 3963 Series
Page 1: ...Translation of original instructions EB 3963 EN Edition June 2018 Type 3963 Solenoid Valves...
Page 58: ...58 EB 3963 EN...
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Page 73: ...EB 3963 EN 73 Model 3963 3 Solenoid Valve 81 82 solenoid valve circuit...
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